Harrow.



No. 690,328. Patented Dec. 3|, I90l. J. SMITH.

NARROW.

(Application filed. June 4, 1901.)

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implement and obviating the necessity for UNITED STATES I PATENT @FricmJACOB SMITH, OF TEKOA, lVASHINGTON.

HARROW.

SPECIFICATION forming part of Letters Patent No. 690,328, dated December31, 1901. Application filed June 4, 1901. Serial No.63.l54. (No model.)

To all whmn it may cancer-n.-

Be it known that I, J ACOB SMITH, a citizen of the United States,residing at Tekoa, in the county of Whitman and State of Washington,have invented certain new and useful Improvements in Hal-rows; and I dohereby declare the following, to be a full, clear, and exact descriptionof the invention, such as will enable others skilled in the art to whichit appertains to make and use the same.

This invention relates to harrows, and has for its object to provide animplement of this character which is readily adjustable and which willoperate in a dead-furrow and depressed places in the surface over whichthe harrow may be drawn, thereby loosening and pulverizing the soilwithin the track of the going over the field a second time.

For a full description of the invention and the merits thereof and alsoto acquire a knowledge of the details of construction of the means foreffecting the result reference is to be had to the following descriptionand drawings hereto attached.

While the essential and characteristic features of the invention arenecessarily susceptible of modification, still the preferred embodimentof the invention is illustrated in the accompanying drawings, in whichFigure 1 is a top plan View of a harrow embodying the invention. Fig. 2is a plan view of a section of the harrow arranged for use in workingaround berry-bushes and be tween rows of plants.

Corresponding and like parts are referred to in the followingdescription and indicated in both views of the drawings by the samereference characters.

The harrow is composed of four bars 1, 2, 3, and 4, hinged -together attheir meeting ends in such a manner as to prevent vertical movement ofthe bars at their pivotal or hinged ends, this being essential in orderto secure stifiness and stability of structure after the parts have beenassembled. Each of the frame-bars is provided with a series of teeth 5,of any desired form, and which teeth are spaced apart, so as to insure athorough pulverizing of the soil and abreaking up of clods in the pathof the implement as it is drawn over the field. Any two adjacent barsmay constitute a harrowsection of V form and may be used independentlyof the other section for cultivating the soil around berrybushes andbetween rows of plants. For the sake of illustration the frame-bars 1and 2 will be referred to as one harrow-section and the frame-bars 4 and3 as the other harrowsection, and these sections are arranged in beingprovided at its extremities with singletrees to which the animals areharnessed in the usual manner. The width of the harrow is regulated byspreading the bars of the sections more or less, chains 8 limiting thespread of the sections when adjusted. The chains 8 are secured at theirfront ends to the toothed bars of the front section and their rear endshave adjustable connection with hooks 9, secured to the bars of the rearsection.

The third harrow-section is located in the space inclosed by the bars 1,2, 3, and 4 and is composed of toothed bars 10 and 11, hinged at oneendand spread at the opposite end. The toothed bar 11 is hinged to thetoothed bar 10 a short distance from the extremity of the latter,whereby the bars 10 and 11 are limited when separated at their forwardor free ends by the square end of the bar 11 abutting against the sideof the portion of the bar 10 in the rear of the pivot or hinge jointbetween the bars. The bars 10 and 11 are connected by links and clevisesto the bars 1 and 2 and are therefore free to move laterally andvertically, and this harrow-section drops into a dead-furrow or otherdepression fenders 12, the same consisting ofrotary disks mounted uponthe outer end portions of the bars 1 and 2 and having their peripheries"closed with rubber 13' or kindred material,

which will prevent injury to the trees should the harrow strike thesame. When it is de- IOU Having thus described the invention, what isclaimed as new is a l. A harrow or like implement comprising two, frontbars flexibly connected and forwardly convergent, two rear barsforwardly divergent, one of the bars being hinged at its inner rearcorner to the side of the other bar a distance from its rear end, andflexible connections joining the forward ends of the rear bars to thefront bars at a point between the ends thereof, substantially as setforth.

2. A h'arrow comprising two front bars flexibly connected, two rear barsflexibly connected to each other-and to the front bars, a third pair ofbars arranged in the space inclosed by the front and rear bars andforwardly divergent and flexibly connected at their forward ends tothefront bars at a point between the ends thereof, and flexibleconnections spanning the angles formed between corresponding front andrear bars and connected thereto and adapted to be lengthened andshortened to vary the angle between the several pairs of bars and the'spreadof the implement, substantially as specified.

In testimony whereof I-affix my signature in presence of two witnesses.

JACOB SMI'Il-I.

\Vitnesses: w

G. N. SMITH, F. P. GREEK.

